CN104234655A - Offshore christmas tree double-V-shaped high-pressure sealing device - Google Patents
Offshore christmas tree double-V-shaped high-pressure sealing device Download PDFInfo
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- CN104234655A CN104234655A CN201410446179.3A CN201410446179A CN104234655A CN 104234655 A CN104234655 A CN 104234655A CN 201410446179 A CN201410446179 A CN 201410446179A CN 104234655 A CN104234655 A CN 104234655A
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- seal
- shaped high
- sealing
- double
- offshore
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Abstract
The invention discloses an offshore christmas tree double-V-shaped high-pressure sealing device, which is characterized by comprising an oil discharge well opening pipe (1), a sealing ring press cover (2), an upper V-shaped sealing steel ring (3), a middle sealing support seat (4), a ventilation hole (5), a lower V-shaped sealing steel ring (6) and a sealing seat (7), wherein the sealing seat (7) is arranged on the oil discharge well opening pipe (1). A radial through hole (5) is drilled in the middle sealing support seat (4) of the offshore christmas tree double-V-shaped high-pressure sealing device provided by the invention.
Description
Technical field
The invention provides a kind of sealing device, be specifically related to a kind of offshore oil production and set double V-shaped high pressure seal.
Background technology
Chinese ocean petroleum and gas equipment enterprise has become manufacture strength important on extra large work market through development, occupies global jack-up unit 11%, drill ship 9%, the occupation rate of market of semisubmersible platform 37%, FPSO16%.The jack-up unit of domestic 61% and the semisubmersible platform of 43% are independently manufactured by China; The FPSO of 73% is independently manufactured by China.
Middle deep water bores completion and mainly equips dependence on import, does not possess the designed output of the deep water hydrocarbon field Development Engineering equipments such as large-scale FPSO, deep water lifting pipe laying vessel, deep water SPAR; Do not possess the production domesticization such as subsea production tree and underwater well head ability.
Because deepwater production tree correlation technique is subject to protection and the restriction of abroad a lot of patent and intellectual property, affect exploitation and the development in China's deep water hydrocarbon field.The research of China production tree is at the early-stage, also has very Da I Member gap at a distance of the offshore oil development power such as the U.S., Brazil, Norway, and domestic only have Baoji petroleum machinery, North China Rong Sheng, CNOOC research center and upper sea God to drive into have gone research.
Summary of the invention
The invention provides a kind of offshore oil production and set double V-shaped high pressure seal, utilize offshore oil production of the present invention to set double V-shaped high pressure seal sealing wellhead, safe and reliable, sealing performance is high, long service life, and cost of production is low.
Technical solution of the present invention is: this offshore oil production is set double V-shaped high pressure seal and comprised fuel-displaced well head pipe, sealing ring gland, upper V-seal steel ring, intermediate seal supporting seat, air vent, lower V-seal steel ring and seal receptacle, and seal receptacle installed by fuel-displaced well head pipe.
Offshore oil production of the present invention is set in double V-shaped high pressure seal, V-seal steel ring and intermediate seal supporting seat under seal receptacle is installed.
Offshore oil production of the present invention is set in double V-shaped high pressure seal, and intermediate seal supporting seat is installed V-seal steel ring and sealing ring gland.
Offshore oil production of the present invention is set in double V-shaped high pressure seal, intermediate seal supporting seat bores a radial direction through hole.
Beneficial effect of the present invention is: structure is simple, and safe and reliable, sealing performance is high, bears high-voltage performance strong, intermediate seal supporting seat bores a radial direction through hole, impel gases at high pressure equilibrium to be full of in upper and lower V-seal steel ring, reach isobaric object.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, fuel-displaced well head pipe 2, sealing ring gland 3, upper V-seal steel ring 4, intermediate seal supporting seat 5, air vent 6, lower V-seal steel ring 7, seal receptacle
Detailed description of the invention
As shown in Figure 1, this offshore oil production is set double V-shaped high pressure seal and is comprised fuel-displaced well head pipe 1, sealing ring gland 2, upper V-seal steel ring 3, intermediate seal supporting seat 4, air vent 5, lower V-seal steel ring 6 and seal receptacle 7, and seal receptacle 7 installed by fuel-displaced well head pipe 1.
Offshore oil production of the present invention is set in double V-shaped high pressure seal, V-seal steel ring 6 and intermediate seal supporting seat 4 under seal receptacle 7 is installed.
Offshore oil production of the present invention is set in double V-shaped high pressure seal, and intermediate seal supporting seat 4 is installed V-seal steel ring 3 and sealing ring gland 2.
Offshore oil production of the present invention is set in double V-shaped high pressure seal, intermediate seal supporting seat 4 bores a radial direction through hole 5.
Beneficial effect of the present invention is: structure is simple, and safe and reliable, sealing performance is high, bears high-voltage performance strong, intermediate seal supporting seat bores a radial direction through hole, impel gases at high pressure equilibrium to be full of in upper and lower V-seal steel ring, reach isobaric object.
Claims (2)
1. offshore oil production sets double V-shaped high pressure seal, it is characterized in that: this offshore oil production is set double V-shaped high pressure seal and comprised fuel-displaced well head pipe (1), sealing ring gland (2), upper V-seal steel ring (3), intermediate seal supporting seat (4), air vent (5), lower V-seal steel ring (6) and seal receptacle (7), and fuel-displaced well head pipe (1) installs seal receptacle (7).
2. offshore oil production according to claim 1 sets double V-shaped high pressure seal, it is characterized in that: at upper brill one radial direction through hole (5) of intermediate seal supporting seat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446179.3A CN104234655A (en) | 2014-09-03 | 2014-09-03 | Offshore christmas tree double-V-shaped high-pressure sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446179.3A CN104234655A (en) | 2014-09-03 | 2014-09-03 | Offshore christmas tree double-V-shaped high-pressure sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104234655A true CN104234655A (en) | 2014-12-24 |
Family
ID=52223462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410446179.3A Pending CN104234655A (en) | 2014-09-03 | 2014-09-03 | Offshore christmas tree double-V-shaped high-pressure sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104234655A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961623A (en) * | 2021-02-27 | 2022-08-30 | 洪泽东俊机械有限公司 | Method for machining unconventional oil and gas wellhead sealing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2672935A1 (en) * | 1991-02-14 | 1992-08-21 | Elf Aquitaine | UNDERWATER WELL HEAD. |
| CN2187223Y (en) * | 1993-11-29 | 1995-01-11 | 程桂华 | Plug-in casing head |
| CN2426006Y (en) * | 1999-07-28 | 2001-04-04 | 石油勘探开发科学研究院江汉机械研究所 | Moveable sealing device |
| CN201621265U (en) * | 2010-04-01 | 2010-11-03 | 洪泽东俊机械有限公司 | Bimetal seal assembly |
| CN103452515A (en) * | 2012-06-01 | 2013-12-18 | 洪泽东俊机械有限公司 | Wellhead bimetal seal assembly |
| CN204098841U (en) * | 2014-09-03 | 2015-01-14 | 洪泽东俊机械有限公司 | Offshore oil production sets double V-shaped high pressure seal |
-
2014
- 2014-09-03 CN CN201410446179.3A patent/CN104234655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2672935A1 (en) * | 1991-02-14 | 1992-08-21 | Elf Aquitaine | UNDERWATER WELL HEAD. |
| CN2187223Y (en) * | 1993-11-29 | 1995-01-11 | 程桂华 | Plug-in casing head |
| CN2426006Y (en) * | 1999-07-28 | 2001-04-04 | 石油勘探开发科学研究院江汉机械研究所 | Moveable sealing device |
| CN201621265U (en) * | 2010-04-01 | 2010-11-03 | 洪泽东俊机械有限公司 | Bimetal seal assembly |
| CN103452515A (en) * | 2012-06-01 | 2013-12-18 | 洪泽东俊机械有限公司 | Wellhead bimetal seal assembly |
| CN204098841U (en) * | 2014-09-03 | 2015-01-14 | 洪泽东俊机械有限公司 | Offshore oil production sets double V-shaped high pressure seal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961623A (en) * | 2021-02-27 | 2022-08-30 | 洪泽东俊机械有限公司 | Method for machining unconventional oil and gas wellhead sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |